"neanderthal" in the noun sense
1. Neandertal man, Neanderthal man, Neandertal, Neanderthal, Homo sapiens neanderthalensis
extinct robust human of Middle Paleolithic in Europe and western Asia
"neanderthal" in the adjective sense
1. boorish, loutish, neanderthal, neandertal, oafish, swinish
ill-mannered and coarse and contemptible in behavior or appearance
"was boorish and insensitive"
"the loutish manners of a bully"
"her stupid oafish husband"
"aristocratic contempt for the swinish multitude"
2. Neanderthal, Neanderthalian, Neandertal
relating to or belonging to or resembling Neanderthal man
"Neanderthal skull"
Source: WordNet® (An amazing lexical database of English)
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